[1] Hannover Med Sch, Abt Klin Immunol, Dept Clin Immunol, D-30625 Hannover, Germany
[2] Hannover Med Sch, Inst Med Microbiol, Hannover, Germany
[3] Univ Dusseldorf, Dept Biochem & Mol Biol 2, Dusseldorf, Germany
[4] Free Univ Berlin, Inst Pharmacol, Berlin, Germany
[5] NIEHS, Lab Signal Transduct, Dept Hlth & Human Sci, NIH, Res Triangle Pk, NC 27709 USA
[6] Univ Gottingen, Dept Immunol, D-3400 Gottingen, Germany
[7] Leiden Univ, Dept Genet, Leiden, Netherlands
[8] Vrije Univ Amsterdam, Dept Mol Cell Biol, Amsterdam, Netherlands